Area code 317 serves the Indianapolis metropolitan area in central Indiana, including the state capital and surrounding suburbs like Carmel, Fishers, Greenwood, and Lawrence. It is one of the original area codes established in 1947 and has long been associated with Indiana's political, cultural, and economic center. In 2016, area code 463 was introduced as an overlay to accommodate the region’s rapid population growth and development, making ten-digit dialing mandatory. Indianapolis is a hub for government, finance, sports, and logistics, and 317 remains one of the most iconic area codes in the state. It is frequently seen in local branding and business names, symbolizing the heart of Indiana’s identity and progress.